Boiler and damper regulator for both steam and hot water



1. LARSON-. PER REGULATOR FOR BOTH STEAM AN APPHCATON FIL ED OCTu 22,1917.

' iatented Aug. 16,1921.

D-HOT. WATER.

BOILER AND DAM N/ll? IM /f 4.

Chicago, in the county of Cook and -of Illinois, have invented new and useful Improvements in Boiler and Damper Regu- JOHN M. LARSON, or CHICAGO, ILLINOIS, ASSIGNOR TO. NATIONAL REGULATOR COM- PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

BOILER AND DAMPER REGULATOR FOR BOTH STEAM AND HOT WATER.

T 0 all whom it may concern:

Be it known that I, JOHN M. TJARSON, a

citizen of the United States, residing at tate lators for Both Steam and Hot Vater, of which the following is a full, clear, concise,

and exact description, reference being bad to the accompanying drawing, forming a part of this specificatlon. Q I

My invention relates to improvements in boiler and damper regulators for both steam Y and hot water, and has for its object the production of a device in which the diaphragm controlling the damperor boiler can be removed without interfering with the boiler itself, or without the necessity of drawing the fire and water.

A further object is the production of" a device of simple and efiicient construction and one not liable to disarrangement.

These and such other objects as may hereinafter appear are attained by my device, an

embodiment of which is illustrated in the accompanying drawings, in which- F igure' 1 represents a side elevation of my device partly in section;

Fig. 2 represents a top plan view of Fig. 1.

Like numerals of reference indicate like parts in the several drawings.

Referringnow to the drawings, a represents the outer shell-of a boiler having a threaded opening Z), within which is screwed a well a. This well has a closed bottom and extends well within the receptacle. Above the nut 03 the outer periphery of the wall of the well is flared outwardly at e, forming a circumferential groove 7, adapted to receive the ends of threaded screws gg which hold a supporting cap it in position on the well. The bottom flange i of the supporting cap is adapted to rest upon the top of the nut d. The cap it is conti acted at its upper portion forming a passage j and a pair of yokes. Zc7s extend upwardly froni the top of the cap and are preferably formed integral therewith.

tighter would be the fit between the cap and Specification of Letters Patent. Patented. A 16 1921 Application filed October 22, 1917. Serial No. 197,799.

the constricted part 7' of the-cap and termi- I able counterweight's g g are mountedon either side of the device and are adapted to be moved to accommodate any. desired pressure.

A-washer orpacking s surrounds the stem o r rod n fitted within the constricted port1on and prevents the escape of heat from .within the well, and prevents the'entry of dust and dirt into the interior of the receptacle. This is very necessary as the device when used is in a place exposed to all kinds 'of dirt and the device would be quickly clogged up and rendered unreliable unless a precaution of this character was taken. In applying my device, the cap and diaphragm are then placed'within the well.

I, In applying my device it is simply necessary to bore a hole .in the casing of they boiler, tap it and screw in the well 0. The

cap and diaphragms are then placed within the well. the stem passing up through the cap it which is dropped over the top of the well. The screws 9 are then inserted and as they are screwed home, their ends strike against the inclined portion of the groove 7,

forcing the cap down tightly on to the nut 03. The tighter the screws are turned in, the

the well.-

j It will be noted that this well is a dry one and when in place, the diaphragn s within the well will be entirely below the level of the fluid within the boiler. The diaphragms Z are filled'with ether or some volatile liquid that will be readily affected by change in temperature. It is apparent,

therefore, that in the event of a leak in the ble for thereason that in thev other forms now inuse, the diaphragms are submerged Y in the-liquid itself, andin order to take them out for inspection, or repair, or replace ment, itv is necessary .to open upthe boiler;

In the case of a boiler .used for hot water heatings'ystem', itwould be necessary to first drawthe fire, then take out the water from the boiler down below the level'of the open- Itwill be necessary to go around ,to all illth: radiators from the top to'the bottom of l the building, open the cocks and valves, and

later going around and closing them again,

and then when the device is put in and ready to start up again, additional cold water must beput in, the fire started and.

after the fire gets going, it is again necessary to go around to all the radiators, open up the cocks and valves in order to let out the cold air, thus causing an inconceivable amount of bother and annoyance to tenants, to say nothing ofthetime during which the v,whole system is out of service, and those re -quiring heat areleft in the cold.

' By the use of this device, in the event that anything happens tothe .diaphragms, the

' diaphragm itself can be removed and sent out forrepairs and returned in a very short time, orthe user can have an extra set of diaphragms on hand so that thezold diaphragm can be replaced in a .very few moments. Heretofore, .it' has been necessary to take out the entire apparatus and ship it for repairs, an expensive and bothersome task, while in the present case all that will be necessary to be sent away wouldbe the diaphragms themselves, weighing but a few ounces.

It will be notedthat the diaphragms are normally collapsed and as a unit can be detaehed from the head and also that at all times when the 'diaph-ragms are in' place,

they are within the well andfbelowthe in ner face of'the boiler and are consequently unaffected by the temperature on the outside. A further advantage incident to the use of my device-is that there is no change in the position of the fluid other than its expansion and coptraction within the. diaphragmS. themselves. ,There is nofluid entering -within any of the chambers rising and falling therein as in other devices which c'orrode the different parts, rendering them difficult to take apart in the event that it is desired to disassemble them, but also cause them to rapidly deteriorate.

Another valuable feature that is present in my device and absent' in all other is the entire lack of solder exceptthat used in assembling the separate diaphragm disks into a unitary structure.

Another valuable in my device is the fact that the cap of the well can be secured thereon in any desired yoke.

feature that present position relative to the line of the damper have the whole device accommodate itself to the line of the lever and to .do this, it is often impossible to secure the members tightly "together, as the device must always securely in place, itis by chance, if at all, that it is in' the properrelative position with respect to the line of'the lever. Hence,

,it is necessary; to unscrew it a portion of a ings may be adopted without'departing from the spirit'of my invention.

Havlng thus described 'my invention,

what I claim as new and desire to secure by Letters Patent is 1. In adevice ;of the class described, a well adapted to bevscrewed within the outer shell of a boiler, a tubular open-ended cap removably mounted on said-well and con-' taining a dust-excluding packing, a series of diaphragms fitting within said well, a stem secured at its lower end-to said diaphragms and extending through said tubular-cap and packing and means whereby the expansion and contraction of said diaphragm may be utilized to operate a damper or like device. I

'2. In a device of the class described, a well closed at one end and open at its other end and adapted to have its closed end inserted into a boiler, the open end being provided with an annular fiange,'-a tubularopen-ended cap adapted to fit over. said open end of the well' and provided with clamp-' ing means for engaging the flange thereon insuch manner as to permit the cap to be 'rotatedwi'threspect to the flange, an elas-c tic guiding dust-excluding packing or washer in the upper end of the tubular cap, a stem extending down through said washer and into the well, an expansible diaphragm structure confined in the well and adapted to actuate said stem, and means; mounted on the outer end of the cap and connected to said stem at a 'point beyond the washer- In other devices it is necessary; tov

be given a full tirrn and when it is screwed for connection with the device to be actuated by the reciprocation of said stem.

In witness whereof, I have hereunto subscribed my-naine. a

JOHN M.- LARSON. Witnesses L. W. 'WAsHINcToN,

I R. W, Knnnonn. 

